
class TradeService{
    findLightningWindow(){
        MsgBox "findLightningWindow 方法必须在子类中实现"
    }
    findPriceAmount(position){
        MsgBox "findPriceAmount 方法必须在子类中实现"
    }
    findOperationButton(){
        MsgBox "findOperationButton 方法必须在子类中实现"
    }

    findSucceTip(){
        MsgBox "findSucceTip 方法必须在子类中实现"
    }
}